Lathe for turning irregular forms.



No. 703,798. Patented July I, I902.

F. J. LELAND. LATHE FOR TURNING IRREGULAR FORMS.

(Application filed June 18, 1901.)

3 Sheets-Sheet I.

(No Model.)

By A TTORNE rs THE uonms PEIKRS 00.. vuovoumu. WASHINGTON, u 1:.

No. 703,798. Patented July I, I902.

F. J. LELAND.

LATHE FOR TURNING IRREGULAR FORMS.

Application filed June 18. 1901.)

(No Model 3 Sheets-Sheet 2.

B) A7T Y6 m: Roam: PETERS co. PHOTD-LITHOV WASHINDTON, n. c.

No. 703,798. Patented July I, I902.

F. J. LELAND.

LATHE FOR TURNING IRREGULAR FORMS.

I'Application filed June 18, 1901.)

(No Model.) 3 Sheets-Sheet 3.

% WITNESSES: u INVENTOH .F7'fl927l; .IZeZazzd am/ I BY E uonms wzrsns co. Puomuma. WASHINGTON o c UNITED STATES PATENT FFICE.

FRANK JAMES LELAND, OF KNOXVILLE, TENNESSEE.-

LATHE FOR TURNING IRREGULAR FORMS.

SPECIFICATION forming part of Letters Patent No. 703,798, dated July 1, 1902. Application filed June 18.1901. Serial No. 65.003- (No model.)

To all whom, it may concern:

Be it known that I, FRANK J AMES LELAND, a citizen of the United States, and a resident of Knoxville, in the county of Knox and State of Tennessee,-have invented a new and Improved Lathe for Turning Irregular Forms, of which the following is a full, clear, and exact description.

This invention relates particularly to improvements in machines for fitting tool-handles to the tool-eyes. Tool manufacturers use wooden handles in tools they produce, such as axes, hatchets, hammers, &c. These handles must'be made at the eye or tool end to certain sizes or gages corresponding to the gage of the openings or eyes in the tools. An ordinary method'in producing these handles is to turn them in a lathe to the approximate fit and then workth em down little by little on sand-belts until fitted to the templet or gage desired. This is a slow and laborious and expensive method; and therefore the object of my invention is to provide a rapid and easy mechanical method of fitting the eyes of all kinds of tool-handles to any desired gage.

I will describe a lathe for turning irregular forms embodying my invention and then .point out the novel features in the appended claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a front elevation of a lathe for turning irregular forms embodying my invention. Fig. 2 is a front elevation and a section on the line a a of Fig. 3. Fig. 3 is an end elevation of the lathe. Fig. 4 is a top plan view thereof.

b b of Fig. 1. Fig. 6 shows a carriage-moving cam employed. Figs. 7 andS illustrate dif-..

Fig. 5 is a section on the line rights at the front side is'a frame 3, which supports the work-holding devices, as will hereinafter appear; Mounted to slide on the top or table 2 is a frame 4, in which'is journaled the cutter-head shaft 5, on which is mounted the cutter-head 6, and also on this shaft 5 is a pulley 7, designed to be engaged with a driving-belt. Extended downward from the carriage or frame 4 and through an opening in-the table-top is a hanger 8, within which is arranged a pulley 9, engaged by a cam 10 on a vertical shaft 11. This cam 10 is designed to move the carriage carrying the cutter-head in one direction, and it is moved in the reverse direction, as here shown, by means of aspring 12, attached at one end to an upright 1 of the main frame and at the other end to the hanger 8.

Theshaft 11 hashearings in brackets 13, .attached to an upright of the main frame, and onits lower end is a bevel-gear 14, engaging with a bevel-gear 15, mounted on a shaft 16,

having bearings in the uprights of the main frame. Loosely mounted on the shaft 16 is a drive-pulley 17, having a clutch-section 18, designed'to be engaged by a clutch-section 19, movable on the shaft 16, but adapted to rotate therewith. Engaging with the clutchsection 19 is a shifting-lever 20. I

Mounted on the upper portion of the frame 3 at one end isaframe 21, in which ismounted the centering-shaft 22 for the work. On this centering-shaft is a bevel-pinion 23, engaging with a bevel-pinion 24 on a vertical shaft 25, which at its lower end has a bevel-pinion 26, meshing with a bevel-pinion 27 on'a shaft 28, having hearings in the swinging frame and, in fact, forms the fulcrum for said" swinging frame. On the shaft 28 is a gear-wheel 29, meshing with a'gear-wheel 30 on the shaft 16. Thereforev it willbe seenwthat upon a rotation of the shaft 16 the'shaft'28 will be rotated and rotary motion will be imparted to the shaft or spindle 22 to rotate the work.

Mounted to slide on the upper portion of the frame 3 is a carriage 31, in which is supported a gripping or holding devicefor the worksuch, for instance, as an ax-handle 32. This gripping device, as clearly shown in Figs. 9 and 10, consists of a block 33, having an opening 34 to receive the work which is passed through a slot extended from the periphery of the block to said opening 34:. By passing the handle flatwise through the slot it may be turned in the opening 3a to bring its wider surfaces against the rear wall of said opening, and the angular opposite walls of said opening will engage tightly against the handle, especially when the same is moved up against the shaft or spindle 22, as indicated in Fig. 1. The opening 34, it will be noted in Fig. 10, is longitudinally tapered, so as to fit the taper of the work. The carriage 31 may be moved along the frame 3 by means of a screw-shaft 35.

Mounted on the spindle 22 is acam 36, designed to move the frame and the work outward relatively to the cutter-head. This cam engages with an abutment-block 37, attached to the fixed frame 1.' As here shown, the abutment-block 37 has at its lower end an arm 38, which passes through loops 39, attached to the under side of the top or table 2,

and it may be held as adjusted outward by,

means of a thumb-screw 40. The cam 36 is removable from the spindle, so that different forms or sizes of cams may be placed thereon for the different forms or sizes of handles. The swinging frame is moved toward the cut tor-head by means of weights 41, from which chains 42 pass over pulleys 43 and connect with the swinging frame.

The operation of the machine is simple and rapid. The swinging frame being brought back a safe distance from the cutter-head, the work is placed in the holder 33 and against the centering-spindle 22. The frame is then moved forward to the cutter-head, and the clutch-section 19 is engaged with the clutch-section 18, and therefore the handle revolves against the revolving cutter-head, which is under the control of the cam 36, which gives the shape and gage to be produced. The cam 10 forces back the cutterhead'carriage at the proper time and place to enable the tapered part of the cutter-head to form the taper and swell at the heel and side of the handle. The clutch is then opened, the carriage brought back, and the handle taken out, one revolution of the bandle being all that is necessary to fit the eye to the desired gage.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. In a lathe for turning irregular forms, a cutter-head, a work-holder com prising a spindle and agripper consisting of a block having an opening to receive the work and a slot extended outward from the opening through which the work may pass, means for rotating the work, and means for causing a relative longitudinal movement between the workholder and the cutter-head, substantially as specified.

2. In a lathe for turning irregular forms, a cutter-head, a work-holder comprising a spindle and a gripper consisting of a block having an opening to receive the work, opposite walls of said opening being angular, and a slot extended outward from the opening through which the work may pass, means for rotating the Work, and means for causing a relative longitudinal movement between the workholder and the head, substantially as specified.

3. A lathe for turning irregular forms,comprising a fixed frame, a frame mounted to swing on the fixed frame, a carriage movable on the fixed frame, a cutter-head mounted to rotate in said carriage, a vertical shaft, a cam on said shaft, a part depending from the carriage with which said cam engages, means for rotating the shaft, a centering-spindle mounted on the swinging frame, means for rotating said centering-spindle, a gripping device adjustable on the swinging. frame, means for moving the swinging frame outward relatively to the cutter-head, and means for moving the swinging frame toward the cutter-head, substantially as specified.

4. A lathe for turning irregular shapes, comprising a fixed frame, a frame mounted to swing on the fixed frame, a cutter-head mounted to rotate on the fixed frame, a centering-spindle on the swinging frame, means for rotating said spindle, a cam removably placed on the spindle, an adjustable abutment for engaging with said cam, means for moving the swinging frame toward the cutter-head, and a rotating gripping-block for the work and carried on the swinging frame, substantially as specified.

5. A lathe for turning irregular shapes, comprising a fixed frame, a frame mounted to swing on the fixed frame, a shaft on which the swinging frame is fulcrumed, a drivingshaft having gear connections with the firstnamed shaft, a cutter-head-supporting carriage movable on the fixed frame, means operated from the driving-shaft to move said carriage in one direction, a centering-spindle mounted on the swinging frame, means op.

erated from the first-named shaft for rotating said spindle, and a work-gripping device mounted to rotate and adjustable on the swinging frame, the said gripping device being adapted for engaging around the work operated on and having a lateral opening through which the work may pass, substantially as specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

FRANK JAMES LELAND.

Witnesses:

BEN. A. HAMILTON, WILLIAM J. MoOoY. 

